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Old Oct 18, 2004, 12:31 AM
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build Allegro-Lite


Start building an Allegro-Lite, here some photos:

Ribs form Laser Art, Boom for Tailboom, Pod & V-mount from Bud, Cabon Cap from CST, still waitting for the K&S Brass tube from Tower Hobby(over 5 weeks have pasted! ) :
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Old Oct 18, 2004, 12:49 AM
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Allegro-Lite Wing Tip


Finished wing tip, total weight 22g, the quality of the kevlar wrap need to be improved. It's my firs time to build a cabon-kevlar spar wing, I am amazing about the strength of the spar !


Last edited by Thomas Wang; Oct 22, 2009 at 03:10 AM.
Old Oct 18, 2004, 01:02 AM
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Allegro-Lite, Mid Wing


Joiner assembly, I use cabon laminate insted of fiber glass on the bottom of the assembly,


Locate the ribs, joiner, cabon cap, web, and wing tip on the plan, apply epoxy and waitting for cure,


Wrapping the Kevlar tow, I get the kevlar tow from the fiber optic cable, it is very good for building the wing!


Wing spar after wrapping the kevlar tow


Apply epoxy and waitting for cure


Joiner and spar assembly


The quality of the kevlar wrapping is better than the tip

Last edited by Thomas Wang; Oct 22, 2009 at 03:13 AM.
Old Oct 18, 2004, 03:06 AM
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Ncie Job!!
Old Oct 18, 2004, 11:30 AM
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great photos.
Can you tell me what the fuse pod cost?
Old Oct 18, 2004, 09:37 PM
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You'll enjoy this one Thomas...it flies beautifully!

Shane
Old Oct 18, 2004, 10:14 PM
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Allegro-Lite Mid wing (cont.)


Add break rib and inner LE


Inner LE flush with rib bottem


Add gusset


Old Oct 18, 2004, 10:18 PM
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Allegro-Lite, stab after sanding


Top


Bottem with V-mount
Old Oct 18, 2004, 10:26 PM
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It looks like you're doing a fantastic job. Keep up the good work. I look forward to seeing it finished.
Old Oct 19, 2004, 09:42 PM
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Allegro-Lite Mid wing (cont.)


Prepare for sheeting, cut the sheet and wet it use watter, bend the sheet according to the curve of the foil, use heat gun dry the sheet, internal side first.


When the sheet dry, it is easy to be glued to the rib & LE structure.


Glue gusset butween bottem sheet and the spar, this will make a strong "D" box.


Mid wing panel after bottem sheeting, sand the inner TE to make it flush with the front of the rib


Top sheet cutted, and will be glued tomorrow
Old Oct 19, 2004, 09:55 PM
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Quote:
Originally Posted by Thomas Wang
Top sheet cutted, and will be glued tomorrow
Looks great.

Don't forget the slight -0.5 deg washout in the mid panels when gluing down the top sheeting. The -0.5 deg works out to raising the TE at the outer break by about 1/16". This washout isn't essential, but it's good insurance against any washin creeping in later.
Old Oct 19, 2004, 10:40 PM
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Oh! Yeh!


Hi Dr. Drela,

Thanks a lot for your reminder, so happy to get your message and I'll pay attentation to it.

Best regards,

Thomas
Old Oct 20, 2004, 03:12 AM
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Lookin good, lookin good!!

Nice build and thanks for sharing your building techniques!
Old Oct 20, 2004, 11:50 AM
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Thomas,
I'm currently building an Allegro Lite-E, though my building finesse is much less than yours. Continue posting pics. I am learning.
Old Oct 20, 2004, 01:40 PM
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Thomas:

Your craftsmanship is superb. I'm very impressed and also encouraged to start assembling the rest of the parts I need to begin my own build. However, I think I'm going to be awhile yet getting underway.

Keep up the good work and keep posting!

EJ


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